This is a cadenza in the key of Ab. This means that is a perfect way to resolve melodically to this chord, for example, at the end of a tune in this key or at any moment if you are playing rubato.
The first two bars form a descending phrase -with some added chromatic tones- over the scale of Eb7(b9,b13). You can also use this lick if you want to resolve to a Ab minor, just be careful with the resolution tone. Other common resolutions include:
Eb(b9,b13) -- > Emaj7
Eb(b9,b13) -- > Dmaj7
Eb(b9,b13) -- > Dm6
The final bars are an ascendant ornamental lick using a double approach to the notes of the Ab mayor triad (Ab, C, Eb) with bottom chromatic and upper diatonic tones. Practice using this for all the above resolutions, this is a mayor part of bebop language!
Check it out on my instagram page:
https://www.instagram.com/p/CUmzTaSja_v/?utm_source=ig_web_copy_link
And here is the pdf:
https://drive.google.com/file/d/1usyoyKl7-1xeGCvBiz4aF9jKaVAlSIe5/view?usp=sharing
